Induced nuclear reactions: processes – systems – and elements – Reactor structures – Orifice or fluid control at inlet or outlet of coolant channels
Patent
1991-10-11
1993-09-28
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Reactor structures
Orifice or fluid control at inlet or outlet of coolant channels
376445, G21C 330
Patent
active
052492109
ABSTRACT:
A method and a device for controlling the coolant flow to the fuel rods (1) in the fuel assembly of a pressurized-water reactor, fuel assembly including an elongated bundle of control rod guide tubes and fuel rods (1) which is arranged between a top nozzle and a bottom nozzle. The bundle is retained by spacers (2) supported by the control rod guide tubes and the top and bottom nozzles are provided with a plurality of openings for the coolant flow. According to the invention, the coolant flow along the fuel rods (1) of a fuel assembly which is under low load is reduced by the insertion of special, or the activation of existing, throttle or guide members (10,11,12,13,16) on the spacers (2) or on the fuel rods (1) between the spacers (2) such that the coolant flow is diverted to one or more adjacent fuel assemblies.
REFERENCES:
patent: 4716011 (1987-12-01), Talegarkham
patent: 4762676 (1988-08-01), Gjertsen et al.
patent: 4859407 (1989-08-01), Nylund
patent: 4994234 (1991-02-01), Nylund
patent: 5066453 (1991-11-01), Heppenstall et al.
Nylund Olov
Scholin Bertil
ABB Atom AB
Voss Frederick H.
Walsh Donald P.
LandOfFree
Method and a device for control of the coolant flow in the fuel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and a device for control of the coolant flow in the fuel , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and a device for control of the coolant flow in the fuel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2196092